Hugo theis



(No Model.) H. TI-IBIS.

solssoas AND SHEARS. No. 301,305. Patented July 1,1884,

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rion.

HUGO THEIS, OF SOLINGEN, PRUSSIA, GERMANY.

SCISSORS AND SHEARS.

SPECIFICATION forming part of Letters Patent No. 301,305, dated July 1,188%. Application filed December S, 1883. (No model.)

' fieation.

The nature of my invention consists of the arrangement of a serrated camor lever on one leg of the scissors and'a projecting point on the otherleg, which, according to the position of the serrated earn, regulatesthe closing of the scissors, and consequently the amount or length ofthe out to be produced.

In the accompanying drawings, Figure 1 is a front view, and Fig. 2 aninside view, of the leg M of the scissors embodying my invention. Fig. 3is a front view of scissors, showing the position of the serrated cam toout a certain length; and Fig. 4 shows the same fixed for a differentlength of out, partly in section.

Similar letters represent similar parts in all the figures.

M N are the legs of the scissors, turning on the pin a, and arrangedwith their cutting ends m a similar to scissors for cutting buttonholes.In one of the legs, M, a serrated cam or lever, A, is fixed to a centerpin provided with a knob, D, through which said cam A can easily beturned into any desired position. I-ielow this serrated cam a spring, 0,is arranged to hold this serrated cam A in any position the same may bemoved, on account of its friction, during the operation of cutting. Onthe other leg, N, nearly opposite the turning-point of the cam A, a projeoting point, I, is attached. When the cam A is turned so as to liewithin the body of the leg M, a hole equal to the whole length of thecutting parts of scissors from m to 2; (see Fig. 1) can be out. When thecam A is turned so that the projection I comes into one of the serratedparts or teeth of the cam A, by the closing of the legs M and N, thelength of the hole that will be cut will only be the distance from a too, (see Fig. 3,) and when said cam A is turned so that the projectionIwill come in contact with the end of the cam Athe shortest hole inlength correspond ing from 00 to c, Fig. 4. It will be seen that thelength of the hole or out will therefore depend upon the position of camA and the serrated part or tooth against which the projection I willCOIllGlll contact when the legs of the scissors are closed. Theseserrated parts or teeth may be numbered for the purpose of facilitatingthe position of the cam A according to the desired length of the hole tobe cut; or the length corresponding with each tooth can be marked uponthe cam A. Instead of arranging this serrated cam A in the body of theleg M, as here shown, the same may be arranged upon its face, and thepoint or projection I in that case upon the surface of the leg- N in aline with the cam A; but I prefer to place the same into the body of oneof the legs, to have as little as possible projection on the outside ofthe scissors.

The knob D may be dispensed with and the cam A moved in the desiredposition by the end of the finger.

lVhat I claim as my invention, and desire to secure by Letters Patent,is

In scissors having cuttingedges m a similar to button-hole scissors, thecombination of a serrated cam, A, with frictionspring O in one of thelegs and a projection, I, on the other leg of the scissors,substantially in the manner and for the purpose herein described.

. HUGO TI-IEIS.

\Vi tnesses:

CARL JOI-IANN KAUFMANN, HANS Fnmnn'ron.

